Listar por autor "JUAN CARLOS KU VERA"
Mostrando recursos 21-40 de 59
-
Engorda de corderos Pelibuey con ensilaje de pulpa de naranja Citrus sinensis L. en jaulas elevadas
CARLOS HUMBERTO ESQUIVEL MIMENZA; JUAN CARLOS KU VERAUna de las principales desventajas de la engorda intensiva de ovinos es el elevado costo por concepto de alimentación basada estrictamente en alimentos comerciales, lo cual hace necesario explorar otras alternativas de ... -
Enteric methane emissions in crossbred heifers fed a basal ration of low-quality tropical grass supplemented with different nitrogen sources
FRANCISCO JAVIER SOLORIO SANCHEZ; JULIAN ARROYAVE JARAMILLO; LUCAS MIGUEL ZAVALA ESCALANTE; ANGEL TRINIDAD PIÑEIRO VAZQUEZ; CARLOS FERNANDO AGUILAR PEREZ; JUAN CARLOS KU VERAThe aim of the present study was to assess enteric methane (CH4) emissions by crossbred heifers fed a basal ration of low-quality tropical grass supplemented with different nitrogen sources. Four crossbred heifers (Bos ... -
Evaluación de cuatro suplementos energéticos sobre el comportamiento productivo en vacas de doble propósito alimentadas con follaje de Leucaena leucocephala y Pennisetum purpureum
VICTOR ADRIAN ARJONA ALCOCEREl objetivo de este estudio fue evaluar el efecto de la incorporación de cuatro suplementos energéticos sobre la producción de leche, su composición química y la concentración de nitrógeno ureico en sangre en vacas de doble ... -
Evaluación del consumo de energía metabolizable sobre el contenido energético de la canal en borregas Pelibuey
ARMIN JAVIER AYALA BURGOS; ALFONSO JUVENTINO CHAY CANUL; JUAN CARLOS KU VERA; JUAN GABRIEL MAGAÑA MONFORTE; RICARDO ALFONSO GARCIA HERRERA; ANGEL TRINIDAD PIÑEIRO VAZQUEZEl objetivo del presente estudio fue evaluar el efecto del consumo de energía metabolizable (CEM) sobre el contenido energético de la canal de ovejas Pelibuey. Veinticuatro (24) ovejas con un peso vivo de 37.2±4.0 kg y ... -
Evaluation of milk composition and fresh soft cheese from an intensive silvopastoral system in the tropics
ARMIN JAVIER AYALA BURGOS; CARLOS FERNANDO AGUILAR PEREZ; MARIA BENEDICTA BOTTINI LUZARDO; FRANCISCO JAVIER SOLORIO SANCHEZ; JUAN CARLOS KU VERAIntensive silvopastoral system (ISS) is a successful sustainable grazing system for dual-purpose cattle with growing adoption in the tropics; however, there is a concern on the quality of dairy products from this system. ... -
Fatty acids profile of fresh cheese produced in an intensive silvopastoral system in the tropics
FRANCISCO JAVIER SOLORIO SANCHEZ; CARLOS FERNANDO AGUILAR PEREZ; ARMIN JAVIER AYALA BURGOS; JUAN CARLOS KU VERAIntensive silvopastoral systems are being increasingly disseminated in the tropical areas of Mexico, Central and South America, so it is important to know the quality of the animal products generated in these systems. Fatty ... -
Forage yield and quality of Leucaena leucocephala and Guazuma ulmifolia in tropical silvopastoral systems
FRANCISCO JAVIER SOLORIO SANCHEZ; FERNANDO CASANOVA LUGO; LUIS RAMIREZ Y AVILES; JESUS ARTURO CAAMAL MALDONADO; JUAN CARLOS KU VERALow availability and quality of pastures during the dry season are common problems in tropical livestock production systems. However, several studies indicate that the use of trees and shrubs is a good alternative to ... -
Increase in milk yield from cows through improvement of forage production using the N2-fixing legume Leucaena leucocephala in a silvopastoral system
CARLOS FERNANDO AGUILAR PEREZ; LUCERO SARABIA SALGADO; FRANCISCO JAVIER SOLORIO SANCHEZ; LUIS RAMIREZ Y AVILES; JUAN CARLOS KU VERAIn tropical livestock production, forage availability and quality are a serious constraint for milk and meat production. There is an urgent need to reduce the environmental impact of animal production while increasing ... -
Leucaena leucocephala feeding systems for cattle production in Mexico
FRANCISCO JAVIER SOLORIO SANCHEZ; LUIS RAMIREZ Y AVILES; CARLOS FERNANDO AGUILAR PEREZ; ARMIN JAVIER AYALA BURGOS; JUAN CARLOS KU VERAThe impacts of leucaena (Leucaena leucocephala) feeding systems on cattle production, environmental services and animal welfare in Mexico are discussed. A total of about 12,000 ha of leucaena have been established in the ... -
Manipulation of the energy metabolism of ruminants in the tropics: options for improving meat and milk production and quality
CARLOS FERNANDO AGUILAR PEREZ; JUAN CARLOS KU VERA; HUGO ANTONIO RUIZ PIÑA; ARMIN JAVIER AYALA BURGOS; FRANCISCO JAVIER SOLORIO SANCHEZ; LUIS RAMIREZ Y AVILESRuminant feeding in tropical regions is characterized by grass grazing. Throughout the year, grasses show variations in their availability and quality. Therefore, modern feeding systems must consider the energy requirements ... -
Milk production and reproduction of dual-purpose cows with a restricted concentrate allowance and access to an association of Leucaena leucocephala and Cynodon nlemfuensis
ARMIN JAVIER AYALA BURGOS; IRINA NADIESKA PENICHE GONZALEZ; ZABDI UZIEL GONZALEZ LOPEZ; CARLOS FERNANDO AGUILAR PEREZ; JUAN CARLOS KU VERA; FRANCISCO JAVIER SOLORIO SANCHEZThe aim of the study was to evaluate the productive and reproductive performance of dual-purpose (DP) cows with a restricted concentrate allowance and access to a forage association of Leucaena (Leucaena leucocephala) and ... -
Milk yield and blood urea nitrogen in crossbred cows grazing Leucaena leucocephala in a silvopastoral system in the Mexican tropics
CARLOS FERNANDO AGUILAR PEREZ; MARIA BENEDICTA BOTTINI LUZARDO; FERNANDO GERARDO CENTURION CASTRO; FRANCISCO JAVIER SOLORIO SANCHEZ; JUAN CARLOS KU VERAThe aim of the study was to assess milk yields, estimate the intake of crude protein (CP) and determine the concentrations of blood urea nitrogen (BUN) in early post-partum crossbred cows grazing irrigated Leucaena ...